Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Presence or absence of the HA G457 variant (from the A1399G mutation) in different MDCK-SIAT1 passages. (A) Proportion of the height of the G nucleotide relative to the combined heights of both the G and A nucleotides. The height of each nucleotide peak was measured, and the proportion was expressed as a percentage. (B) Sequencing chromatograms for P0 and all MDCK-SIAT1 passages at nucleotide 1399. Chromatograms were visualized using FinchTV software.
